Theory of Heavy Baryon Decay

We discuss various topics in the theory of heavy baryon decays. Among these are recent applications of the Relativistic Three Quark Model to semileptonic, nonleptonic, one-pion and one-photon transitions among heavy baryons, new higher order perturbative results on the correlator of two heavy baryon currents and on the semi-inclusive decay ${\mathrm{\Lambda }}_b\to X_c+D_s^{(\ast )-}$.